<template>
  <div class="sub-sort">
    <div class="sort">
      <a
        href="javascript:;"
        :class="{ active: sortField === null }"
        @click="changeSort(null)"
        >默认排序</a
      >
      <a
        href="javascript:;"
        :class="{ active: sortField === 'publishTime' }"
        @click="changeSort('publishTime')"
        >最新商品</a
      >
      <a
        href="javascript:;"
        :class="{ active: sortField === 'orderNum' }"
        @click="changeSort('orderNum')"
        >最高人气</a
      >
      <a
        href="javascript:;"
        :class="{ active: sortField === 'evaluateNum' }"
        @click="changeSort('evaluateNum')"
        >评论最多</a
      >
      <a href="javascript:;" @click="changeSort('price')">
        价格排序
        <i class="arrow up" :class="{ active: sortMethod === 'desc' }" />
        <i class="arrow down" :class="{ active: sortMethod === 'asc' }" />
      </a>
    </div>
    <div class="check">
      <XtxCheckbox @change="changeCheck" v-model="inventory"
        >仅显示有货商品</XtxCheckbox
      >
      <XtxCheckbox @change="changeCheck" v-model="onlyDiscount"
        >仅显示特惠商品</XtxCheckbox
      >
    </div>
  </div>
</template>
<script>
import { reactive } from "vue";
import { toRefs } from "@vueuse/core";
export default {
  name: "SubSort",
  setup(props, { emit }) {
    const sortParams = reactive({
      inventory: false,
      onlyDiscount: false,
      sortField: null,
      sortMethod: null,
    });
    const changeSort = (sortField) => {
      if (sortField === "price") {
        sortParams.sortField = sortField;
        if (sortParams.sortMethod === null) {
          sortParams.sortMethod = "desc";
        } else {
          sortParams.sortMethod =
            sortParams.sortMethod === "desc" ? "asc" : "desc";
        }
      } else {
        if (sortParams.sortField === sortField) return;
        sortParams.sortField = sortField;
        sortParams.sortMethod = null;
      }
      emit("sort-change", sortParams);
    };
    const changeCheck = () => {
      emit("sort-change", sortParams);
    };
    return { ...toRefs(sortParams), changeSort, changeCheck };
  },
};
</script>
<style scoped lang='less'>
.sub-sort {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  .sort {
    display: flex;
    a {
      height: 30px;
      line-height: 28px;
      border: 1px solid #e4e4e4;
      padding: 0 20px;
      margin-right: 20px;
      color: #999;
      border-radius: 2px;
      position: relative;
      transition: all 0.3s;
      &.active {
        background: @xtxColor;
        border-color: @xtxColor;
        color: #fff;
      }
      .arrow {
        position: absolute;
        border: 5px solid transparent;
        right: 8px;
        &.up {
          top: 3px;
          border-bottom-color: #bbb;
          &.active {
            border-bottom-color: @xtxColor;
          }
        }
        &.down {
          top: 15px;
          border-top-color: #bbb;
          &.active {
            border-top-color: @xtxColor;
          }
        }
      }
    }
  }
  .check {
    .xtx-checkbox {
      margin-left: 20px;
      color: #999;
    }
  }
}
</style>